K83.1 — Obstruction of bile duct
K83.1 is a billable, specific ICD-10-CM code for obstruction of bile duct. It is valid for submission on a claim.
Excludes1 — never code together
These conditions cannot occur together. Billing both on the same encounter is a denial.
Inclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Occlusion of bile duct without cholelithiasis
- Stenosis of bile duct without cholelithiasis
- Stricture of bile duct without cholelithiasis
Risk adjustment
K83.1 risk-adjusts. Under the CMS-HCC V28 model it maps to this category:
- HCC 68 Cholangitis and Obstruction of Bile Duct Without Gallstones0.388 RAF
Coefficient shown for the Community Non-dual Aged segment. A higher HCC in the same hierarchy will suppress this one, so capturing it does not always add score.
Medicare coverage
K83.1 is named in 5 Medicare coverage policies — 5 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A56389Billing and Coding: Upper Gastrointestinal Endoscopy and Visualization
- A56421Billing and Coding: CT of the Abdomen and Pelvis
- A56798Billing and Coding: Vitamin D Assay Testing
- A57414Billing and Coding: Upper Gastrointestinal Endoscopy (Diagnostic and Therapeutic)
How K83.1 is indexed
Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to K83.1.
- Cholestasis NEC
- Mirizzi's syndrome(hepatic duct stenosis)
- Jaundice›obstructive
- Jaundice›regurgitation
- Obliteration›bile duct(noncalculous)
- Obliteration›common duct(noncalculous)
- Obstruction, obstructed, obstructive›ampulla of Vater
- Obstruction, obstructed, obstructive›bile duct or passage(common) (hepatic) (noncalculous)
- Obstruction, obstructed, obstructive›biliary(duct) (tract)
- Obstruction, obstructed, obstructive›common duct(noncalculous)
- Obstruction, obstructed, obstructive›hepatobiliary
- Occlusion, occluded›bile duct(common) (hepatic) (noncalculous)
Related codes at this level
Codes that share K83. If K83.1 is not quite right, the correct code is usually one of these.
Questions about K83.1
- Is K83.1 a billable ICD-10-CM code?
- Yes. K83.1 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does K83.1 sit in the tabular list?
- Diseases of the digestive system (K00-K95), in the block Disorders of gallbladder, biliary tract and pancreas (K80-K87).
- What cannot be coded together with K83.1?
- K83.1 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.